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Mapping of AXI cache with AHB5 prot

Hi,

We see the mapping of AHB5 prot signal with AXI cache signals given in the table in

It is seen that the mapping here is given with respect to AXI5, I think it should be the same with AXI3/AXI4. Please confirm this.

If we have to map AHB5 prot to AXI cache signal,

AXI signal	Value derived from AHB signal
awcache[3]	hprot[5] for write
arcache[2]	hprot[5] for read
axcache[1]	hprot[3]
axcache[0]	hprot[2]
axprot[2]	~hprot[0]
axprot[1]	hnonsec
axprot[0]	hprot[1]

hprot[6] shareable attribute will not be mapped to any signal in AXI3/AXI4.

What happens to the look up attribute hprot[4]? Is there any corresponding bit in the AXI cache signals which this bit can be mapped to?

Thanks,

Manasa